Thank you for your genuine concern. You are takeh an emmesdika ohev yisroel.
Most Rebbes, regardless of age, walk with a fancy cane/umbrella. It is a minhag that goes back to the European days. Rebbes, when they travel, always go with an entourage. It’s more bekavodik/malchusdik.
If you look at the other story with the Rebbe being in Lakewood, posted above, you will see that the Rebbe was there for a housing development for his Chassidim as well.
It also happened to have been during Bain Hazmanim.
And finally, being such a hard working fellow yourself, what were you doing posting a comment at 3:05 am???